For temperatures below 300 degrees, consider 1.56. For thinner temperatures, consider 1.60. For temperatures between 300 and 500 degrees, consider 1.60. For thinner temperatures, consider 1.67. For temperatures between 500 and 1000 degrees, consider 1.71 for thinner temperatures. 1000 If the thickness is above 1.71, consider 1.71. If you want it to be thinner, use 1.74.

Protection of glasses:

1. Taking it on and off with one hand will destroy the left and right balance of the frame and cause deformation. It is recommended to hold the temples with both hands and take them off in parallel directions on both sides of the cheek.

2. When taking it on and putting it on, the left temple is generally folded first to avoid deformation of the frame.

3. It is recommended to rinse the glasses with clean water and use paper towels to absorb the water, and then use a special glasses cloth to try wiping. You need to hold the frame edge wire on one side of the wiping mirror and wipe the lenses gently to avoid excessive force. Damage to frames or lenses.

4. When not wearing glasses, please wrap them with glasses cloth and put them in the glasses case. If you place it temporarily, please put the convex side of the glasses upward, otherwise the lenses will be easily scratched. At the same time, glasses should avoid contact with corrosive items such as insect repellents, toilet cleaning supplies, cosmetics, hairspray, and medicines, and avoid long-term direct sunlight and high temperatures (above 60°C). Otherwise, it is easy to cause deterioration, deterioration, and discoloration of the lenses and frames. .

5. Go to a professional store for plastic surgery regularly. Deformation of the frame will put a burden on the nose and ears, and the lenses can easily become loose.

6. Do not use glasses during strenuous exercise to avoid strong impact that may cause the lenses to break, causing eye and facial damage; do not use worn lenses to prevent light dispersion from causing vision loss; do not look directly at the sun Or strong dazzling light to avoid eye damage.

If you want to know more about glasses, it is recommended to choose Guiyang Aier Eye Hospital. AIER Ophthalmology has seven major research institutes including AIER Eye Research Institute, AIER Eye Institute of Optometry, Corneal Disease Research Institute, Cataract Research Institute, Glaucoma Research Institute, Retina Research Institute and Refractive Research Institute, aiming to promote ophthalmology. , vision science, and research and innovation on cutting-edge and clinical application technologies in various subspecialties, to provide patients with more considerate and all-round services.

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